13171444 has 24 divisors (see below), whose sum is σ = 27080928. Its totient is φ = 5526240.

The previous prime is 13171441. The next prime is 13171453. The reversal of 13171444 is 44417131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13171441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10942 + ... + 12085.

It is an arithmetic number, because the mean of its divisors is an integer number (1128372).

Almost surely, 2^13171444 is an apocalyptic number.

It is an amenable number.

13171444 is an abundant number, since it is smaller than the sum of its proper divisors (13909484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13171444 is a wasteful number, since it uses less digits than its factorization.

13171444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23055 (or 23053 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 13171444 is about 3629.2484070397. The cubic root of 13171444 is about 236.1626045916.

Adding to 13171444 its reverse (44417131), we get a palindrome (57588575).

The spelling of 13171444 in words is "thirteen million, one hundred seventy-one thousand, four hundred forty-four".